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Finding the Fourth Proportional to 212,060.64, 318,752.16 and 133,678.56

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Solution

The fourth proportional to 212,060.64, 318,752.16 and 133,678.56 is: 200,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,060.64 : 318,752.16 = 133,678.56 : x
  2. Step 2: Convert to fraction form
    212,060.64/318,752.16 = 133,678.56/x
  3. Step 3: Cross multiply
    212,060.64x = 318,752.16 × 133,678.56
  4. Step 4: Simplify right side
    212,060.64x = 42,610,329,745.69
  5. Step 5: Solve for x
    x = 42,610,329,745.69/212,060.64
  6. Step 6: Final answer
    x = 200,934.65

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